The quality of intestinal microbiota and its influence on the sports performance of long-distance runners

<ns3:p>The content of the intestinal microbiota is not only a determinant of metabolic efficiency, but also has an impact on the regulation of immunological processes, which is particularly important in the context of intense physical effort, such as ultramarathon running. The article discusses the specifics of runners’ nutrition, pointing out their unique energy needs and the risk of dysbiosis. The role of fatty acids and probiotics as potential tools in optimizing sports performance is emphasized, paying attention to supplementation and nutritional strategies that can support gut health and energy efficiency in long-distance runners.</ns3:p>